Unlock instant, AI-driven research and patent intelligence for your innovation.

A flat gate valve for oil field

A slab gate valve and oil field technology, applied in valve details, valve devices, sliding valves, etc., can solve problems such as damage to the driving mode, affecting work, and inability to meet complex and changeable use environments, achieving high reliability and simple switching methods Effect

Active Publication Date: 2022-04-26
ZHEJIANG GUANZHENG VALVE CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The driving devices of traditional slab gate valves include pneumatic drive, hydraulic drive, electric drive or handwheel drive. They can only choose one driving mode, which cannot meet the complex and changeable use environment. For example, in the case of power failure, pneumatic drive will not be available. , or when a single drive mode is damaged, it will cause the flat gate valve to be unusable and affect the work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A flat gate valve for oil field
  • A flat gate valve for oil field
  • A flat gate valve for oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Accompanying drawing has shown structure of the present invention, further illustrates its relevant details below again in conjunction with accompanying drawing. In this embodiment, the slab gate valve used in the oil field includes a valve body 1, a gate plate 2, a valve stem 3 and a valve cover 4. The valve cover 4 is arranged on the upper end of the valve body 1, and the valve stem 3 can be lifted and sealed through Set on the valve cover 4, a sealing assembly 5 is provided between the corresponding valve stem 3 and the valve cover 4, the gate plate 2 is set in the valve body 1 and linked with the valve stem 3, that is, the gate plate 2 is controlled by the valve stem 3 Drive up and down, and the gate plate 2 cooperates with the sealing seat 6 in the valve body 1, the upper end of the valve cover 4 is provided with a bracket 7, the upper end of the bracket 7 is provided with a cylinder body 8, and the cylinder body 8 is provided with a piston 9, and the piston 9 It i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a slab gate valve for oil field, which comprises a valve body, a gate plate, a valve stem and a valve cover. The piston, the piston and the valve stem are connected through a connecting rod; the bracket is provided with a control sleeve, a control block and a switching block that are sleeved outside the valve stem, and the control block and the switching block are arranged in the control sleeve vertically. The upper end of the control sleeve is rotatably connected to the cylinder body, and the lower end of the switching block is rotatably connected to the bracket. The control block and the control sleeve are linked in the circumferential direction. The control block includes symmetrically distributed left and right blocks, and the left and right blocks can be Radial movement is set in the control sleeve, the inner side of the left block and the right block are matched with the valve stem screw thread transmission, and the left block and the right block are driven by the switch block; the bracket is rotated with a cross bar, and the outer end of the cross bar is connected with a The hand wheel and the inner end of the cross bar are connected with the control sleeve through bevel gear transmission. The invention realizes the switchable use of the driving mode.

Description

technical field [0001] The invention relates to an improved invention of a gate valve, in particular to an improved invention of a slab gate valve used in an oil field. Background technique [0002] The driving devices of traditional slab gate valves include pneumatic drive, hydraulic drive, electric drive or hand wheel drive. It can only choose one driving mode, which cannot meet the complex and changeable use environment. For example, in case of power failure, pneumatic drive will not be available. , or when a single driving method is damaged, it will cause the flat gate valve to be unusable and affect the work. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a slab gate valve for oilfields with switchable driving modes. [0004] In order to solve the above-mentioned technical problems, the present invention is realized by adopting the following technical scheme: ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/143F16K3/02
CPCF16K31/143F16K3/0254
Inventor 蓝晶晶
Owner ZHEJIANG GUANZHENG VALVE CO LTD